Police said they were maintaining a heightened presence, fearing copycat attacks.

An Australian terrorism expert is warning of copycat attacks following the strikes on Paris.

Vikernes was sentenced to 21 years in prison, with several other churches being torched in copycat attacks.

We are also focused on mitigating the risks to New Zealanders posed by possible revenge or copycat attacks, she said.

Police fear a spate of copycat attacks has seen the crisis extend beyond the original single grower in Queensland more than a week ago.

Experts have said media reports about the attacks have raised the risk of copycat attacks, and the latest reported incident may be one of them.